Lifting and dumping body apparatus



Nov. 29, 1927. 1,650,815

E. R. BARRETT LIFTING AND DUMPING'. BODY APPARATUS Filed June 12. 1924 '7 Sheets-Sheet 1 Efl #29 fi fl l 2/ n: 11,25 1. 1. a

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. 1 E. R. BARRETT LIFTING AND DUMPING BODY APPARATUS Filed June 12. 1924 '7 Sheets-Sheet 4 E. R. BARRETT LIFTING AND DUMPING BODY APPARATUS Nov. 29, 1927. 1,650,815

Filed un -12. 1924 '7 Sheets-Sheet 5 ow. 29, 1927. E. R. BARRETT.

LIFTING AND DUMPING BODY APPARATUS ,Ffiled June 12, 1924 '7 Sheets-Sheet 6 O Q 33 l 1.9

' NOV. 29, 1927. 9 1,650,815

E. R. BARRETT I LIFTING AND DUMPING BODY APPARATUS Filed June 12, 1924 '7 Sheets-Sheet 7 Nov. 29, 1927- UNITED STATES PATENT EDWARD B. BARRETT, 015 DETROIT, MICHIGAN, ASSIGNOR TO WOOD HYDRAULIC GAN.

HOIST AND BODY COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OIVMICm-f LIFTING AND DUMPING BODY APPARATUS.

Application filed June 12, 1924. Serial No. 719,534.

This invention relates to a lifting and dumping body apparatus designed for either the tilting of a body carriedon a motor truck or like vehicle so as to dump its contents by gravity or for the simultaneous lifting of the body above its normal position and tilting thereof for gravity dumping.

The present invention consists of various novel constructions, combinations and ar rangements of parts for practically attaining these ends in a new'and' effective manner and one which is particularly efiicient in operation. In addition, the construction includes means whereby the body may be simultaneously elevated and tilted to different positions, one of which is an extreme high position and the other an intermediate high position lower than the first.-

For understanding of the invention by means of which these ends are obtained and of the construct-ions embodying the invention, reference may be had to the following description taken in connection with the,

accompanying drawing in which,

Fig. 1 is a side elevation of a motor truck with'a dumping body thereon provided with the mechanisms of my invention, the body being shown in lower horizontal position. I

Fig. 2 is a like view showing the body elevated to its highest position and tilted for gravity dumping.

Fig. 3 is a, fragmentary perspective view showing the body in its uppermost tilted position.

Fig. 4 is a transverse fragmentary vertical section throughthe mechanism back of the hydraulic cylinder used therewith.

Fig. 5 is a fragmentary longitudinal section through the apparatus, the same being in its collapsed position or when the body lies horizontal.

Fig. 6 is a like view showing the apparatus after it has moved to partly elevate the body.

Fig. 7 is a view similar to Fig. 5 illustrat-' ing the disconnection of certain elements of the apparatus such as is done when the body is to be merely tilted and notelevated.

Fig. 8 is a fragmentary plan view of the apparatus. the body beingremoved.

Fig.9 is a vertical section showing the body fully tilted but not elevated and is the position the partstake on operation of the apparatus, with certain parts disconnected as previously described with reference to Fig.

Fig. 10 is a view similar to that shown in F1g. 9, but with the body elevated as well as t lted, the elevation being to the intermed ate position, and w v Fig. 11 is a "somewhat modified constructlon showing a partial section or elevation of a construction serving the same purposes as;

those shown inFigs. 2 and 3, but e nipped with means for moving the body orward simultaneously with its elevation and tilting. 2

Like reference characters refer to like parts in the different figures of the drawings.

The construction is adapted to be applied to a motor vehicle indicatedat -1 and having chassis side frame mernbers-2 mounted. ar-

allel to each oth ri 'and insubstantial y a horizontal plane. At the rear ends of the side frame membersja builau crossbeam is used comprlsmg rear-andfront, channels 3 and 4 with an upper plate"5"'bridging and connecting the same. I The 'fbuilt up' cross member or beam lies between and over the rear ends of the chassi's"'*-fram"e members 2 and is permanently secured thereto. In front of the beam is a -cros'sbar"6" of angle iron, in front of the crossbar 'Gis'a second cross bar 7 of angle giron, int-front of the cross bar 7 is a third crossbar "8 'alsoof angle ironand in front of theibar 8,*afrontcross bar 9 of channel iron 'Zwhich'lies 'directly" back of the cab of the motor vehicle or'truck. The bars are spaced apart as shown man of the Figures2, 6or 8 andbars'6 andserve as supports for parallel tracks 10 which at their rear ends are slightly leVatdresting on supporting blocks 11 attached t th cross bar 6. h

A cylinder 12 is located lengthwise of the chassis and substantially midw'aybetween its side frame members 2,.the front end having any suitable connection tothe channel bar 9 1 while its rear end extends substantiallyto the front ends of the tracks 10. A piston is located within thecylinder and a pistonrod i 13 connected to the piston passes outwardly at the rear end of the cylinder. "At its rear end it has a permanent connection with a cross head 14 each end of which isprovided with a spindle 15 for the rotatable mounting of rollers16, 17 and 18. The rollers 16 are adapted to ride on the tracks 10. The rollers 17 are at the outer ends of the spindles and the rollers 18 are located between rollers 16 and 17.

Two brackets 19 are permanently secured in' spaced apart relation on the upper side .is mounted on and extends between the brackets 19. To each of side bars 20 a cam member 23 is permanently secured, the

under edges curving downwardly and to the rear as shown. With cam members 23 positioned so that the rollers 17 come against the under edges thereof, it is evident that on rearward movement of the cross head 14 with the rollers mounted thereon, rollers 16 running on tracks 10 and rollers 17 hearing a inst the cam edges of members 23, the slde bars 20 will be turned upwardly about the axis of the shaft 22. And if nothing but a simple tiltin action of the body was desired it would a merely necessary to mount the body above and on the side bars 20. This construction so far described, however, is the subject matter of a patent by Logan '1. Wood, No. 1,502,534, issued July 22, 1924 and while forming necessary elements of the present construction, is not in itself the subject matter of this application.

Two rods 24 are pivotally connected at their front ends to suitable brackets carried on tht-cross bar 8 and extend to the rear therefrom. A sleeve 25 is slidably mounted on each rod 24. Each rod carries a nut 26 at its rear free end and there is a coiled spring 27 disposed around each rod between each sleeve 25 and the nut 26. A second rod 28 is ivotall connected at its rear end to each 0 the si e bars 20 and extends forwardly to the sleeve 25 having permanent connection thereto at its front end as best shown in Fi res 2 and 3. When the side bars 20 are ti ted upwardly and, as will later appear, any tendency for the construction to over-balance to the rear and the entire structure move about the axis of rod 22 rearwardly is checked by the construction just described, which acts as a stop against such rearward tilting be ond a desired point.

'IWvo bars 29 of c annel formation are located one at the outer side of each of the side bars 20. A rod 30 passes through the front ends of the bars 20'and also through the front ends of the bars 29 whereby a pivoted connection between bars 20 and 29 is made. In practice a spacing block 30 is located between the webs'of the two channel bars 20 and 29. Cross sills 31, also of channel iron, preferably, are attached in spaced a art relation to and lie over and between t a two bars 29. In addition, two angle iron cross .bars 32 lie over and above the bars 29 and are secured thereto to serve as additional supports for tracks 33 which are located one inside of each bar 29. These tracks 33 are conveniently formed from angle iron and have horizontal legs to serve as tracks for rollers as will later appear. The front end ortions of the horizontal legs are curved ownwardly and forwardly at 33 as best shown in Figures 5, 6 and 7. A body 34 is locatedabove and permanently secured to cross sills 31. The body is of any well known and conventional design, and its specific structure need not be entered into in the present .p lication.

On the inner sid ei of each cam member 23 an arm 35 is located which is pivotally connected at its upper rear corner, the pivot 36 preferably passing through the cam member 23 and being rmanently secured to the web of the ad acent side bar 20. In the lower position of the body, as shown in Fig. 5, the upper edges of arms 35 lie under the rollers 18. A link 37 at its front end is pivotally mounted on the same pivot in 36, one for each arm 35. A second ,lin 38 is connected to the arm 35 below and in front of the pin 36, a removable pin 39 being passed t rough an alined o enin 39 in the arm 35 and the front en of t e link 38. At the rear ends of the links 37 and 38 a built-up structure is mounted, comprising two spaced apart connected plates 40 substantially of a diamond shape.

A rod 41 lies between these built-up struc;

tures at the rear ends of the two pairs 0 links 37 and 38 and passes throu h the built up structures and also through t e rear end of the links 38. The rear ends of links 38 are enlarged, and the rear ends of links 37 are bifurcated to have a part pass by each side of the enlarged end of link 38 and a removable pin 42 passes through the lates 40., the bifurcated ends of link 37 an also through the link 38 as best shown in Fig ure 8. A roller 43 is rotatably mounted between plates 40 at the extreme rear ends thereof, these rollers bearing against the horizontal ortions of the tracks 33 previously descri d. It is evident that openings must be made through the plates 40- to pass the ins 42. These openings are shown in 42 in Figure 10. In addition other openings 44 are made in these plates for the assage of the pins 42 when it is desire to change the relative positions of the plates 40 and the links 37 and 38. In Fig. 10 this is shown, said plates 40 being turned sub-- stantially at almost right angles to the osition occupied as shown, for instance in igure 6. Y

With a construction as described, when the piston rod 13 and the trundle at its end comprised of cross head 14 and the various rollers mounted thereon are moved .rearwardly, side bars 20 are elevated about the pivot axis of shaft 22. Simultaneously with such movement the rollers 18 bear against the ends of arms 35 and turn the arms with the connected links 37 and 38 about the pivots 36, and arms 35 and links 37 and 38 being in effect a rigid lever when connected together; It is evident the rear ends 'of links 37 and 38 are elevated and at the same tle or no tilting of the front end thereof;

but with continued movement, the elevation of the front end of the body over the rear end increases until finally, as shown in Fig. 3, the front end of the body is elevated to a considerable distance over the rear end .and'

the rollers 43 bear against the curved portions 33 of tracks 33. The body is thus elevated and tilted and its contents may be dumped by releasing the end gate of the body as is usual with constructions of this character. The rods 24 and 28 with the connections between them hold the body from over-balancing to the rear.

The position of the parts as shown in Fig. 3 is the extreme upper position that the body can take. If it is desired to elevate and tilt the body to an intermediate posi tion, the plates 40 areconnected to links 37 and 38 by passing the pin 42through the openings '44 in said plates whereupon the length of lever arm from pivots 36 t0 the highest point of roller 33 is reduced with a consequent less elevation of the body, as is evident.

Many times it is not necessary to elevate the body when it is tilted. In such cases links 38 are disconnected from arms 35 as shown in Fig. 7. When this is done the only mechanism that comes into play is that of rollers 17 against the lower edges of cam members 23.- The arms 35, links 37 and 38 and devices carried at the ends of said links are wholly inoperative and the body is merely tilted about the axis of shaft 22 as shown in Fig. 9. V

In Fig. 11 a somewhat modified form of construction is shown. The side bars 20 are pivotally mounted at 22 on brackets 19 and at their front ends a cross shaft 45 is mounted on arms 46 permanently secured to the sidebars 20. Rollers 47 are mounted on the shaft 45 to run between the flanges of the bars 29 and links 48 connect adjacent bars ate parts between them as the center of grav-.

This is fully. shown in F igure, 6. The first movement of the body 34 accordingly is upward with :lit- 1 tilting and" ciently 'forward position that it will not pass back'of the axis of shaft 22. v

This construction provides for the simultaneous lifting and tilting of-a dumping body with a provision for merely. tilting the body if that is desired throu hafew simple disconnections of-parts an with'a provision for elevating and tilting the body to an intermediate position below the extreme upper position if'desired. :The construction ity' of the load will be maintained in sufiiis practical and operative,-durable and 'efiici 'nt.

comprehensivewof all forms of structure comingwithin the scope of saidclaims.

Iclaim: I. 1. Inco'mbination withatruek frame, two" spaced apart side bars pivotally connected at their rear ends tothe frameand parallel- .ing the chassis side frame members of-the truck frame, a cam attached to each side bar and extending below the same, tracks. on the truck frame, a trundle mounted to move over the tracks and carrying rollers town on said tracks, other rollers to run under the cams to thereby tilt said side bars, and other The-invention is defined inqtheap "pended claims-and is to be considered as so rollers mounted between the first and second rollers, a- 'body located above the said side bars, means for connecting the body at its front end with the said sidefbars whereby said body-at its rear end, may beelevated tracks to operate against the under side of the body at its rear portion to automatically elevate the rear end of the body with the elevation of the front end thereof. I

2. In combination, a truck frame, side bars pivotally connected in spaced apart relation to the truck frame to be tilted upwardly about their pivotal connection, a

truck body mounted for tilting movements about the front ends of said side bars, a

trundle movably mounted on the truck frame to movelengthwise thereof, means attached to said side bars with which said trundle'engages to tilt the said side bars, and additional means actuated by the trundle and op- .eratively engaging withthe body for automatically elevating the body at its rear end as the said side bars are tilted by said trundle. v I

3. In a device of theclass described, a truckframe, side bars pivotally mounted at being spaced apart, additional bars'pivotally connected at their front ends to the front ends of the side bars, a truck body car their rear ends on the truck frame, said bars ried on and above said additional bars,

tracks secured below the body, means for tilting the side bars about their pivotal connections, and means mounted on each of the side bars simultaneously actuated by the ends with the front ends of the side bars for movin and lying one alongside each side bar, cross sills attached to and above said additional bars, a truck body carried by the cross sills,

tracks attached to and lyingunder the cross sills, a lever construction pivotally mounted between its ends on each side bar, a roller on the rear end of each lever construction bearing a ainst a track, cams attached to and depen ing below the sidebars, a trundle longitudinally of the truck frame, trac s carried on the truck frame, rollers on the trundle to bear on the truck frame tracks, other rollers to ride under the cams, and still other rollers to ride over the upper edges of the front ends of the lever constructlons, substantially as and for the purposes described.

5. In a device of the class described, a truck frame, two spacedapart side bars pivotally connected at their rear ends to the rear portion of the truck frame, two additional bars having pivotal connections at their front ends with the front ends of the side bars and lying one alongside each side bar, cross sills attached to and above said additional bars, a truck bod carried on the cross sills, tracks attache to and lying under the cross sills and paralleling the said additional bars, a lever construction pivotally connected between its ends to each of the side bars, a roller mounted at the rear end of each lever construction, said roller be ing carried on an adjustably connected mounting attached to the rear, end portion of the lever construction whereby the roller may be located in two difi'erentpositions with respect to the rear end of said lever construction, said rollers bearin against the tracks, means for tilting the si e bars about their pivots, and means for simultaneously operating the lever constructions to turn the same about their pivotal mounts and elevate the rear ends of said lever constructions and rollers carried thereby, substantially as" described.

6. In a device of the class described, a truck frame, two spaced apart side bars pivotally connected at their rear ends to the rear portion of the truck frame, two additional bars ada ted tolie one alongside each of the side bars having pivotal connections at their front ends with the front ends thereto against which said rollers bear, and

means for simultaneously tilting the side bars upwardly and turning the lever constructions to elevate the rear end thereof and attached rollers.

7. In an apparatus of the class described, a truck frame, two spaced apart side bars pivotally mounted at their rear ends on said truck frame, two additional bars lying one alongside each of the side bars, means pivotally connecting the side and additional bars at their front ends, a truck body carried on and above the said additional bars, tracks located under and fixed with respect to the body, an arm pivotally connected to each of the side bars and extending forward from its pivot, a link mounted on said ivot and extending rearwardly, a second lin detachably connected to the arm and'extending rearwardly substantially parallel to the first link, means for connecting the links at their rear ends, and a roller mounted at the rear ends of the connected links, said rollers bearing on said tracks. v v

8. In an apparatus of the class described, a truck frame, two spaced apart side bars pivotally mounted at their rear ends on said truck frame, two additional bars lying one alongside each of the side bars, means pivotally connecting the side and additional bars at their front ends, a truck body carried on and above the said additional bars, tracks located under and fixed with respect to the body, an arm pivotally connected to each of the side bars and extending forward from the pivot, a link mounted on said pivot and extending rearwardly, a second link detachably connected to the arm and extending rearwardly and substantially parallel to the first link, two plates located one at each side of the ends of the links, means for pivotally mounting said plates on the second of said links whereby the same may be adjusted to different positions, means for securing said plates to both of the links in a plural- 'ity of different positions. a roller rotatably mounted between the plates, said rollers bearing on the tracks, and means to simultaneously tilt the side bars upwardly and to the rear and turn the said arms downwardly about their pivots with a consequent elevation of the links and attached rollers.

In testimony whereof I afiix my signature.

EDWARD R. BARRETT. 

